WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: WAMU.02AR9
Distribution Date: 09/25/2003

Class	Cusip	Orig Prin Bal	Begin Prin Bal	Int Rate Accrued	Int Rate Paid	Int Dist	Prin Dist	Int Shortfall	Prin Loss	Deferred Interest	Int Reimbursed	Unscheduled Int	Prin Reimbursed	Total Dist	Ending Class Bal
IA	9393357P4	$835,471,000.00	$659,507,886.15	2.8484392557%	2.8484392557%	$1,565,473.46	$35,190,500.56	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$36,755,974.02	$624,317,385.59
IB1	9393357Q2	$13,088,000.00	$12,970,164.40	2.8484392557%	2.8484392557%	$30,787.27	$18,039.14	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$48,826.41	$12,952,125.26
IB2	9393357R0	$6,544,000.00	$6,485,082.16	2.8484392557%	2.8484392557%	$15,393.64	$9,019.57	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$24,413.21	$6,476,062.59
IB3	9393357S8	$6,544,000.00	$6,485,082.16	2.8484392557%	2.8484392557%	$15,393.64	$9,019.57	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$24,413.21	$6,476,062.59
IB4	9393356M2	$5,671,000.00	$5,619,942.11	2.8484392557%	2.8484392557%	$13,340.05	$7,816.32	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$21,156.37	$5,612,125.79
IB5	9393356N0	$1,745,000.00	$1,729,289.18	2.8484392557%	2.8484392557%	$4,104.81	$2,405.13	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$6,509.94	$1,726,884.05
IB6	9393356P5	$3,491,685.81	$3,460,249.03	2.8484392557%	2.8484392557%	$8,213.59	$4,812.43	$0.00	$0.14	$0.00	$0.00	$0.00	$0.00	$13,026.02	$3,455,436.46
IIA	9393357T6	$596,568,000.00	$396,398,705.88	3.3629298998%	3.3605057621%	$1,110,083.45	$28,481,016.06	$0.00	$0.00	$800.77	$0.00	$0.00	$0.00	$29,591,099.50	$367,918,490.59
IIB1	9393357U3	$9,370,000.00	$9,367,102.17	3.3629298998%	3.3605057621%	$26,231.83	$4,602.93	$0.00	$0.00	$18.92	$0.00	$0.00	$0.00	$30,834.76	$9,362,518.17
IIB2	9393357V1	$5,309,000.00	$5,307,358.11	3.3629298998%	3.3605057621%	$14,862.84	$2,608.00	$0.00	$0.00	$10.72	$0.00	$0.00	$0.00	$17,470.84	$5,304,760.83
IIB3	9393357W9	$4,060,000.00	$4,058,744.37	3.3629298998%	3.3605057621%	$11,366.19	$1,994.44	$0.00	$0.00	$8.20	$0.00	$0.00	$0.00	$13,360.63	$4,056,758.13
IIB4	9393356Q3	$5,622,000.00	$5,620,261.31	3.3629298998%	3.3605057621%	$15,739.10	$2,761.76	$0.00	$0.00	$11.35	$0.00	$0.00	$0.00	$18,500.86	$5,617,510.91
IIB5	9393356R1	$1,249,000.00	$1,248,613.76	3.3629298998%	3.3605057621%	$3,496.64	$613.56	$0.00	$0.00	$2.52	$0.00	$0.00	$0.00	$4,110.20	$1,248,002.72
IIB6	9393356S9	$2,500,623.78	$2,499,850.41	3.3629298998%	3.3605057621%	$7,000.63	$1,228.36	$0.00	$0.04	$5.05	$0.00	$0.00	$0.00	$8,229.00	$2,498,627.05
R	9393357X7	$100.00	$0.00	0.0000000000%	0.0000000000%	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00
R_SYN	XXXXXXXXX	$0.00	$0.00	0.0000000000%	0.0000000000%	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00
Total		$1,497,233,409.59	$1,120,758,331.20			$2,841,487.15	$63,736,437.82	$0.00	$0.18	$857.54	$0.00	$0.00	$0.00	$66,577,924.97	$1,057,022,750.74

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: WAMU.02AR9
Distribution Date: 09/25/2003

Class	Orig Face	Beg Bal	Prin Loss	Deferred Interest	Total Prin	End Cert Pct	End Cert Bal
IA	$835,471,000.00	$659,507,886.15	$0.00	$0.00	$35,190,500.56	0.7472639811	$624,317,385.59
IB1	$13,088,000.00	$12,970,164.40	$0.00	$0.00	$18,039.14	0.9896183726	$12,952,125.26
IB2	$6,544,000.00	$6,485,082.16	$0.00	$0.00	$9,019.57	0.9896183664	$6,476,062.59
IB3	$6,544,000.00	$6,485,082.16	$0.00	$0.00	$9,019.57	0.9896183664	$6,476,062.59
IB4	$5,671,000.00	$5,619,942.11	$0.00	$0.00	$7,816.32	0.9896183724	$5,612,125.79
IB5	$1,745,000.00	$1,729,289.18	$0.00	$0.00	$2,405.13	0.9896183668	$1,726,884.05
IB6	$3,491,685.81	$3,460,249.03	$0.14	$0.00	$4,812.43	0.9896183815	$3,455,436.46
IIA	$596,568,000.00	$396,398,705.88	$0.00	$800.77	$28,481,016.06	0.6167251522	$367,918,490.59
IIB1	$9,370,000.00	$9,367,102.17	$0.00	$18.92	$4,602.93	0.9992015123	$9,362,518.17
IIB2	$5,309,000.00	$5,307,358.11	$0.00	$10.72	$2,608.00	0.9992015125	$5,304,760.83
IIB3	$4,060,000.00	$4,058,744.37	$0.00	$8.20	$1,994.44	0.9992015099	$4,056,758.13
IIB4	$5,622,000.00	$5,620,261.31	$0.00	$11.35	$2,761.76	0.9992015137	$5,617,510.91
IIB5	$1,249,000.00	$1,248,613.76	$0.00	$2.52	$613.56	0.9992015372	$1,248,002.72
IIB6	$2,500,623.78	$2,499,850.41	$0.04	$5.05	$1,228.36	0.9992015072	$2,498,627.05
R	$100.00	$0.00	$0.00	$0.00	$0.00	0.0000000000	$0.00
R_SYN	$0.00	$0.00	$0.00	$0.00	$0.00	0.0000000000	$0.00
Total	$1,497,233,409.59	$1,120,758,331.20	$0.18	$857.54	$63,736,437.82	0.7059839461	$1,057,022,750.74

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: WAMU.02AR9
Distribution Date: 09/25/2003
PER $1000 DENOMINATION
Class	Orig Face	Beg Bal	Prin Loss	Deferred Interest	Total Prin	End Cert Pct	End Cert Bal
IA	$835,471,000.00	789.38453417	0.00000000	0.00000000	42.12055303	0.7472639811	747.26398114
IB1	$13,088,000.00	990.99666870	0.00000000	0.00000000	1.37829615	0.9896183726	989.61837256
IB2	$6,544,000.00	990.99666259	0.00000000	0.00000000	1.37829615	0.9896183664	989.61836644
IB3	$6,544,000.00	990.99666259	0.00000000	0.00000000	1.37829615	0.9896183664	989.61836644
IB4	$5,671,000.00	990.99666902	0.00000000	0.00000000	1.37829660	0.9896183724	989.61837242
IB5	$1,745,000.00	990.99666476	0.00000000	0.00000000	1.37829799	0.9896183668	989.61836676
IB6	$3,491,685.81	990.99667561	0.00004010	0.00000000	1.37825402	0.9896183815	989.61838150
IIA	$596,568,000.00	664.46525104	0.00000000	0.00134229	47.74144114	0.6167251522	616.72515219
IIB1	$9,370,000.00	999.69073319	0.00000000	0.00201921	0.49124120	0.9992015123	999.20151227
IIB2	$5,309,000.00	999.69073460	0.00000000	0.00201921	0.49124129	0.9992015125	999.20151253
IIB3	$4,060,000.00	999.69073153	0.00000000	0.00201970	0.49124138	0.9992015099	999.20150985
IIB4	$5,622,000.00	999.69073461	0.00000000	0.00201885	0.49124155	0.9992015137	999.20151370
IIB5	$1,249,000.00	999.69076061	0.00000000	0.00201761	0.49124099	0.9992015372	999.20153723
IIB6	$2,500,623.78	999.69072917	0.00001600	0.00201950	0.49122143	0.9992015072	999.20150723
R	$100.00	0.00000000	0.00000000	0.00000000	0.00000000	0.0000000000	0.00000000
R_SYN	$0.00	0.00000000	0.00000000	0.00000000	0.00000000	0.0000000000	0.00000000

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: WAMU.02AR9
Distribution Date: 09/25/2003

Class	Orig Face	Int Rate Accrued	Int Rate Paid	Beg Cert Prin/Not Bal	Curent Int Accrued	Int Shortfall	Unscheduled Int	Int Reimbursed	Total Int Dist
IA	$835,471,000.00	2.8484392557%	2.8484392557%	$659,507,886.15	$1,565,473.46	$0.00	$0.00	$0.00	$1,565,473.46
IB1	$13,088,000.00	2.8484392557%	2.8484392557%	$12,970,164.40	$30,787.27	$0.00	$0.00	$0.00	$30,787.27
IB2	$6,544,000.00	2.8484392557%	2.8484392557%	$6,485,082.16	$15,393.64	$0.00	$0.00	$0.00	$15,393.64
IB3	$6,544,000.00	2.8484392557%	2.8484392557%	$6,485,082.16	$15,393.64	$0.00	$0.00	$0.00	$15,393.64
IB4	$5,671,000.00	2.8484392557%	2.8484392557%	$5,619,942.11	$13,340.05	$0.00	$0.00	$0.00	$13,340.05
IB5	$1,745,000.00	2.8484392557%	2.8484392557%	$1,729,289.18	$4,104.81	$0.00	$0.00	$0.00	$4,104.81
IB6	$3,491,685.81	2.8484392557%	2.8484392557%	$3,460,249.03	$8,213.59	$0.00	$0.00	$0.00	$8,213.59
IIA	$596,568,000.00	3.3629298998%	3.3605057621%	$396,398,705.88	$1,110,083.45	$0.00	$0.00	$0.00	$1,110,083.45
IIB1	$9,370,000.00	3.3629298998%	3.3605057621%	$9,367,102.17	$26,231.83	$0.00	$0.00	$0.00	$26,231.83
IIB2	$5,309,000.00	3.3629298998%	3.3605057621%	$5,307,358.11	$14,862.84	$0.00	$0.00	$0.00	$14,862.84
IIB3	$4,060,000.00	3.3629298998%	3.3605057621%	$4,058,744.37	$11,366.19	$0.00	$0.00	$0.00	$11,366.19
IIB4	$5,622,000.00	3.3629298998%	3.3605057621%	$5,620,261.31	$15,739.10	$0.00	$0.00	$0.00	$15,739.10
IIB5	$1,249,000.00	3.3629298998%	3.3605057621%	$1,248,613.76	$3,496.64	$0.00	$0.00	$0.00	$3,496.64
IIB6	$2,500,623.78	3.3629298998%	3.3605057621%	$2,499,850.41	$7,000.63	$0.00	$0.00	$0.00	$7,000.63
R	$100.00	0.0000000000%	0.0000000000%	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00
R_SYN	$0.00	0.0000000000%	0.0000000000%	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00
Total	$1,497,233,409.59			$1,120,758,331.20	$2,841,487.15	$0.00	$0.00	$0.00	$2,841,487.15

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: WAMU.02AR9
Distribution Date: 09/25/2003
PER $1000 DENOMINATION
Class	Orig Face	Int Rate Accrued	Int Rate Paid	Beg Cert Prin/Not Bal	Curent Int Accrued	Int Shortfall	Unscheduled Int	Int Reimbursed	Total Int Dist
IA	$835,471,000.00	2.8484392557%	2.8484392557%	789.38453417	1.87376158	0.00000000	0.00000000	0.00000000	1.87376158
IB1	$13,088,000.00	2.8484392557%	2.8484392557%	990.99666870	2.35232809	0.00000000	0.00000000	0.00000000	2.35232809
IB2	$6,544,000.00	2.8484392557%	2.8484392557%	990.99666259	2.35232885	0.00000000	0.00000000	0.00000000	2.35232885
IB3	$6,544,000.00	2.8484392557%	2.8484392557%	990.99666259	2.35232885	0.00000000	0.00000000	0.00000000	2.35232885
IB4	$5,671,000.00	2.8484392557%	2.8484392557%	990.99666902	2.35232763	0.00000000	0.00000000	0.00000000	2.35232763
IB5	$1,745,000.00	2.8484392557%	2.8484392557%	990.99666476	2.35232665	0.00000000	0.00000000	0.00000000	2.35232665
IB6	$3,491,685.81	2.8484392557%	2.8484392557%	990.99667561	2.35232791	0.00000000	0.00000000	0.00000000	2.35232791
IIA	$596,568,000.00	3.3629298998%	3.3605057621%	664.46525104	1.86078276	0.00000000	0.00000000	0.00000000	1.86078276
IIB1	$9,370,000.00	3.3629298998%	3.3605057621%	999.69073319	2.79955496	0.00000000	0.00000000	0.00000000	2.79955496
IIB2	$5,309,000.00	3.3629298998%	3.3605057621%	999.69073460	2.79955547	0.00000000	0.00000000	0.00000000	2.79955547
IIB3	$4,060,000.00	3.3629298998%	3.3605057621%	999.69073153	2.79955419	0.00000000	0.00000000	0.00000000	2.79955419
IIB4	$5,622,000.00	3.3629298998%	3.3605057621%	999.69073461	2.79955532	0.00000000	0.00000000	0.00000000	2.79955532
IIB5	$1,249,000.00	3.3629298998%	3.3605057621%	999.69076061	2.79955164	0.00000000	0.00000000	0.00000000	2.79955164
IIB6	$2,500,623.78	3.3629298998%	3.3605057621%	999.69072917	2.79955348	0.00000000	0.00000000	0.00000000	2.79955348
R	$100.00	0.0000000000%	0.0000000000%	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000
R_SYN	$0.00	0.0000000000%	0.0000000000%	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
MASTER SERVICING
MORTGAGE PASS-THROUGH CERTIFICATES
09/2003 DISTRIBUTION REPORT
SERIES: WAMU 02AR9 WEIGHTED AVERAGE PC RATE: 2.84844%
POOL NUMBER: 1889
ISSUE DATE: 07/26/2002
CERTIFICATE BALANCE AT ISSUE: $872,554,785.81
	TOTAL NUMBER OF MORTAGES	CERTIFICATE ACCOUNT ACTIVITY (@ PCRATE)	CERTIFICATE BALANCE OUTSTANDING
BALANCES FROM LAST FISCAL MONTH-END:	1405		$696,257,695.20
PRINCIPAL POOL COLLECTION(S):
Scheduled Principal Collection Due Current Month		$968,367.99
Unscheduled Principal Collection/Reversals		$244,817.81
Liquidations-in-full	61	$34,028,427.07
Net principal Distributed		$35,241,612.87	-$35,241,612.87

CAPITAL LOSS (PRINCIPAL WRITTEN OFF):			$0.00

BALANCE CURRENT FISCAL MONTH-END:	1344		$661,016,082.33

SCHEDULED INTEREST AT MORTGAGE RATE:		$2,270,418.74

UNSCHEDULED INTEREST AT MORTGAGE RATE:
Unscheduled Interest Collection/Reversals		$0.00
Interest Uncollected on Liquidation		$0.00
Interest Uncollected on Non-Earning Assets		$0.00
Net Unscheduled Interest Distributed		$0.00

OTHER:
Loan Conversion Fees		$0.00
Expense Reimbursements		$0.00
Gain on Liquidations		$0.00
Hazard Insurance Premium Refunds		$0.00
Net Other Distributions		$0.00

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
MASTER SERVICING
MORTGAGE PASS-THROUGH CERTIFICATES
09/2003 DISTRIBUTION REPORT
	TOTAL NUMBER OF MORTAGES	CERTIFICATE ACCOUNT ACTIVITY (@ PCRATE)	CERTIFICATE BALANCE OUTSTANDING
SCHEDULED SERVICING FEE EXPENSES:		$617,712.43

UNSCHEDULED SERVICING FEES:
Unscheduled Service Fee Collections/Reversals		$0.00
Servicing Fees Uncollected on Liquidation		$0.00
Servicing Fees Uncollected/Non-Earning Assets		$0.00
Net Unscheduled Service Fees Distributed		$0.00

MISCELLANEOUS EXPENSES:		$0.00

NET FUNDS DISTRIBUTED:		$36,894,319.18

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
MASTER SERVICING
MORTGAGE PASS-THROUGH CERTIFICATES
09/2003 DISTRIBUTION REPORT
SERIES: WAMU 02AR9 WEIGHTED AVERAGE PC RATE: 3.36293%
POOL NUMBER: 1890
ISSUE DATE: 07/26/2002
CERTIFICATE BALANCE AT ISSUE: $624,678,623.78
	TOTAL NUMBER OF MORTAGES	CERTIFICATE ACCOUNT ACTIVITY (@ PCRATE)	CERTIFICATE BALANCE OUTSTANDING
BALANCES FROM LAST FISCAL MONTH-END:	884		$424,500,636.01
PRINCIPAL POOL COLLECTION(S):
Scheduled Principal Collection Due Current Month		$207,738.95
Unscheduled Principal Collection/Reversals		$168,484.60
Liquidations-in-full	59	$28,117,744.05
Net principal Distributed		$28,493,967.60	-$28,493,967.60

CAPITAL LOSS (PRINCIPAL WRITTEN OFF):			$0.00

BALANCE CURRENT FISCAL MONTH-END:	825		$396,006,668.41

SCHEDULED INTEREST AT MORTGAGE RATE:		$1,772,080.95

UNSCHEDULED INTEREST AT MORTGAGE RATE:
Unscheduled Interest Collection/Reversals		$0.00
Interest Uncollected on Liquidation		$0.00
Interest Uncollected on Non-Earning Assets		$0.00
Net Unscheduled Interest Distributed		$0.00

OTHER:
Loan Conversion Fees		$0.00
Expense Reimbursements		$0.00
Gain on Liquidations		$0.00
Hazard Insurance Premium Refunds		$0.00
Net Other Distributions		$0.00

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
MASTER SERVICING
MORTGAGE PASS-THROUGH CERTIFICATES
09/2003 DISTRIBUTION REPORT
	TOTAL NUMBER OF MORTAGES	CERTIFICATE ACCOUNT ACTIVITY (@ PCRATE)	CERTIFICATE BALANCE OUTSTANDING
SCHEDULED SERVICING FEE EXPENSES:		$582,442.76

UNSCHEDULED SERVICING FEES:
Unscheduled Service Fee Collections/Reversals		$0.00
Servicing Fees Uncollected on Liquidation		$0.00
Servicing Fees Uncollected/Non-Earning Assets		$0.00
Net Unscheduled Service Fees Distributed		$0.00

MISCELLANEOUS EXPENSES:		$0.00

NET FUNDS DISTRIBUTED:		$29,683,605.79

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
MASTER SERVICING
MORTGAGE PASS-THROUGH CERTIFICATES
09/2003 DISTRIBUTION REPORT
SERIES: WAMU 02AR9 WEIGHTED AVERAGE PC RATE: 3.04331%
POOL NUMBER: ALL
ISSUE DATE: 07/26/2002
CERTIFICATE BALANCE AT ISSUE: $1,497,233,409.59
	TOTAL NUMBER OF MORTAGES	CERTIFICATE ACCOUNT ACTIVITY (@ PCRATE)	CERTIFICATE BALANCE OUTSTANDING
BALANCES FROM LAST FISCAL MONTH-END:	2289		$1,120,758,331.21
PRINCIPAL POOL COLLECTION(S):
Scheduled Principal Collection Due Current Month		$1,176,106.94
Unscheduled Principal Collection/Reversals		$413,302.41
Liquidations-in-full	120	$62,146,171.12
Net principal Distributed		$63,735,580.47	-$63,735,580.47

CAPITAL LOSS (PRINCIPAL WRITTEN OFF):			$0.00

BALANCE CURRENT FISCAL MONTH-END:	2169		$1,057,022,750.74

SCHEDULED INTEREST AT MORTGAGE RATE:		$4,042,499.69

UNSCHEDULED INTEREST AT MORTGAGE RATE:
Unscheduled Interest Collection/Reversals		$0.00
Interest Uncollected on Liquidation		$0.00
Interest Uncollected on Non-Earning Assets		$0.00
Net Unscheduled Interest Distributed		$0.00

OTHER:
Loan Conversion Fees		$0.00
Expense Reimbursements		$0.00
Gain on Liquidations		$0.00
Hazard Insurance Premium Refunds		$0.00
Net Other Distributions		$0.00

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
MASTER SERVICING
MORTGAGE PASS-THROUGH CERTIFICATES
09/2003 DISTRIBUTION REPORT
	TOTAL NUMBER OF MORTAGES	CERTIFICATE ACCOUNT ACTIVITY (@ PCRATE)	CERTIFICATE BALANCE OUTSTANDING
SCHEDULED SERVICING FEE EXPENSES:		$1,200,155.19

UNSCHEDULED SERVICING FEES:
Unscheduled Service Fee Collections/Reversals		$0.00
Servicing Fees Uncollected on Liquidation		$0.00
Servicing Fees Uncollected/Non-Earning Assets		$0.00
Net Unscheduled Service Fees Distributed		$0.00

MISCELLANEOUS EXPENSES:		$0.00

NET FUNDS DISTRIBUTED:		$66,577,924.97

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: WAMU.02AR9
Distribution Date: 09/25/2003

Distribution by Group
Pool ID		Principal		Interest		Total
Pool - 1889		$35,241,612.87		$1,652,706.31		$36,894,319.18
Pool - 1890		$28,493,967.60		$1,189,638.19		$29,683,605.79
Aggregate		$63,735,580.47		$2,842,344.50		$66,577,924.97

Number of Loans and Aggregate Principal Balance By Group
Pool ID	Beg Bal	Beg Count	Paid Off / Liq Count	Rem Count	Sched Prin End Bal	Sched Prin	Prin PrePay / Liq	Unsched Prin / Rev	Total Prin
Pool - 1889	$696,257,695.20	1405	61	1344	$661,016,082.33	$968,367.99	$34,028,427.07	$244,817.81	$35,241,612.87
Pool - 1890	$424,500,636.01	884	59	825	$396,006,668.41	$207,738.95	$28,117,744.05	$168,484.60	$28,493,967.60
Aggregate	$1,120,758,331.21	2289	120	2169	$1,057,022,750.74	$1,176,106.94	$62,146,171.12	$413,302.41	$63,735,580.47

Delinquency Information by Group
Pool ID	1 Month Count	Sched End Balance	2 Months Count	Sched End Balance	3 Months Count	Sched End Balance	4 Months Count	Sched End Balance
Pool - 1889	13	$6,408,790.79	5	$2,821,373.56	0	$0.00	0	$0.00
Pool - 1890	10	$5,035,439.55	2	$750,905.84	0	$0.00	1	$319,530.88
Aggregate	23	$11,444,230.34	7	$3,572,279.40	0	$0.00	1	$319,530.88

Foreclosure and REO Information by Group
Pool ID		Foreclosure Count		Sched End Balance		REO Count		Sched End Balance
Pool - 1889		0		$0.00		0		$0.00
Pool - 1890		0		$0.00		0		$0.00
Aggregate		0		$0.00		0		$0.00

Aggregate Loss Amounts by Group
Pool ID			Count			Loss Amount
Group 1(1889)			0			$0.00
Group 2(1890)			0			$0.00
Aggregate			0			$0.00

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: WAMU.02AR9
Distribution Date: 09/25/2003

INSURANCE RESERVES - Group 1(1889)
Insurance Type	Original Balance	Claims In Progress	Claims Paid	Coverage Adjustments	Coverage Remaining
MPI	$0.00	$0.00	$0.00	$0.00	$0.00
Special Hazard	$9,350,836.00	$0.00	$0.00	$0.00	$9,350,836.00
Bankruptcy Bond
Single-Units	$199,761.00	$0.00	$0.00	$0.00	$199,761.00
Multi-Units	$0.00	$0.00	$0.00	$0.00	$0.00
Mortgage Repurchase	$29,944,668.00	$0.00	$0.00	$0.00	$29,944,668.00

INSURANCE RESERVES - Group 2(1890)
Insurance Type	Original Balance	Claims In Progress	Claims Paid	Coverage Adjustments	Coverage Remaining
MPI	$0.00	$0.00	$0.00	$0.00	$0.00
Special Hazard	$9,350,836.00	$0.00	$0.00	$0.00	$9,350,836.00
Bankruptcy Bond
Single-Units	$199,761.00	$0.00	$0.00	$0.00	$199,761.00
Multi-Units	$0.00	$0.00	$0.00	$0.00	$0.00
Mortgage Repurchase	$29,944,668.00	$0.00	$0.00	$0.00	$29,944,668.00

INSURANCE RESERVES - Aggregate
Insurance Type	Original Balance	Claims In Progress	Claims Paid	Coverage Adjustments	Coverage Remaining
MPI	$0.00	$0.00	$0.00	$0.00	$0.00
Special Hazard	$18,701,672.00	$0.00	$0.00	$0.00	$18,701,672.00
Bankruptcy Bond
Single-Units	$399,522.00	$0.00	$0.00	$0.00	$399,522.00
Multi-Units	$0.00	$0.00	$0.00	$0.00	$0.00
Mortgage Repurchase	$59,889,336.00	$0.00	$0.00	$0.00	$59,889,336.00

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: WAMU.02AR9
Distribution Date: 09/25/2003

The Group I and II Subordinate Certificates provide, to the limited extent described in the Prospectus Supplement, credit support, as well as special hazard, bankruptcy, and fraud coverage to certain Group I and II Senior Certificates. The "Prospectus Supplement" is that certain Prospectus Supplement, dated July 25, 2002 to that certain Prospectus Supplement, dated July 23, 2002, to which certain Group I and II Certificates were offered. The Special Hazard, Bankruptcy, and Fraud coverage (collectively, "Credit Enhancements") provided by the Group I and II Subordinate certificates provide coverage to the Group I and II Loans, subject to the conditions and limitations to payment specified thereunder.



The Class Principal Balances of each Class of the Class IB1,IB2,IB3,IB4,IB5,IB6 Certificatesimmediately after the principal and interest distribution on 200309 are as follows:

Class			Class Principal Balance
IB1			$12,952,125.26
IB2			$6,476,062.59
IB3			$6,476,062.59
IB4			$5,612,125.79
IB5			$1,726,884.05
IB6			$3,455,436.46
Total			$36,698,696.74
Capitalized items used but not defined herein have the meanings ascribed to them in the Prospectus Supplement.
The amount of the special hazard coverage, bankruptcy coverage, and fraud coverage, as of the above referenced distribution date, is $9,350,836.00, $199,761.00, $29,944,668.00 respectively, and such coverages are referred to in the table above under the column "Insurance Type" as "special hazard," "bankruptcy bond," and "mortgage repurchase," respectively. However, no policy of insurance exists for any such coverage, notwithstanding the reference to "insurance."



The Group I and II Subordinate Certificates provide, to the limited extent described in the Prospectus Supplement, credit support, as well as special hazard, bankruptcy, and fraud coverage to certain Group I and II Senior Certificates. The "Prospectus Supplement" is that certain Prospectus Supplement, dated July 25, 2002 to that certain Prospectus Supplement, dated July 23, 2002, to which certain Group I and II Certificates were offered. The Special Hazard, Bankruptcy, and Fraud coverage (collectively, "Credit Enhancements") provided by the Group I and II Subordinate certificates provide coverage to the Group I and II Loans, subject to the conditions and limitations to payment specified thereunder.



The Class Principal Balances of each Class of the Class IIB1,IIB2,IIB3,IIB4,IIB5,IIB6 Certificatesimmediately after the principal and interest distribution on 200309 are as follows:

Class			Class Principal Balance
IIB1			$9,362,518.17
IIB2			$5,304,760.83
IIB3			$4,056,758.13
IIB4			$5,617,510.91
IIB5			$1,248,002.72
IIB6			$2,498,627.05
Total			$28,088,177.82
Capitalized items used but not defined herein have the meanings ascribed to them in the Prospectus Supplement.
The amount of the special hazard coverage, bankruptcy coverage, and fraud coverage, as of the above referenced distribution date, is $9,350,836.00, $199,761.00, $29,944,668.00 respectively, and such coverages are referred to in the table above under the column "Insurance Type" as "special hazard," "bankruptcy bond," and "mortgage repurchase," respectively. However, no policy of insurance exists for any such coverage, notwithstanding the reference to "insurance."

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: WAMU.02AR9
Distribution Date: 09/25/2003

Aggregate ARM Information by Group
Pool ID	Netwac	Margin
Pool - 1889	2.84844%	1.40000%
Pool - 1890	3.36293%	1.25000%
Aggregate	3.04331%	1.34319%

WASHINGTON MUTUAL MORT SEC CORP WAMU MO PA TH CE SE 2002-AR9 8-K